Controller for a machine



FIG. 1 is a front perspective view of a controller for a machine;

FIG. 2 is a front view of the controller for a machine shown in FIG. 1;

FIG. 3 is a left side view of the controller for a machine shown in FIG. 1;

FIG. 4 is a right side view of the controller for a machine shown in FIG. 1;

FIG. 5 is a bottom perspective view of the controller for a machine shown in FIG. 1;

FIG. 6 is a top perspective view of the controller for a machine shown in FIG. 1; and,

FIG. 7 is a rear view of the controller for a machine shown in FIG. 1. 

The ornamental design for a controller for a machine, as shown and described. 